CXA1814 データシートの表示（PDF） - Sony Semiconductor

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CXA1814

I2C BUS-COMPATIBLE AUDIO/VIDEO SWITCH

Sony Semiconductor 

CXA1814N

Serial Control Block

Block connection

Mechanism/Servo

Controller

SOUT

(MCU)

SCLK

CS

SIN

SCLK

CS

ATF IC

Serial

Port

Gain

Control

&

TESTMODE

Control

PB GAIN

SP/LP GAIN

TESTMODE

Select

Timing chart

CS

SCLK

SIN

The 10 bits before Data Read CS rises at the rising

edge are labeled D0 to D9. (See the figure below.)

Data Read : Rising Edge

D0 to D9 : 10BITS Before Rising Edge of CS

Tcsclk Tclk

Tclkcs

DataRead

D9 D8 D7 D6 D5 D4 D3 D2 D1 D0

Tcsclk

Tclk

Tclkcs

NIN

5 µsec

1 µsec

5 µsec

MAX

Serial Data Contents (SERIAL DATA)

GCA1

GCA2

D0 D1 D2 D3 PBAMPGAIN (dB) D4 D5 D6 D7

0000

0 ± 0.5

0000

0001

1 ± 0.5

0001

0010

2 ± 0.5

0010

0011

3 ± 0.5

0011

0100

4 ± 0.5

0100

0101

5 ± 0.5

0101

0110

6 ± 0.5

0110

0111

7 ± 0.5

0111

1000

8 ± 0.5

1000

1001

9 ± 0.5

1001

1010

10 ± 0.5

1010

1011

11 ± 0.5

1011

1100

12 ± 0.5

1100

1101

13 ± 0.5

1101

1110

14 ± 0.5

1110

1111

15 ± 0.5

1111

SPAMPGAIN (dB)

0 ± 0.5

1 ± 0.5

2 ± 0.5

3 ± 0.5

4 ± 0.5

5 ± 0.5

6 ± 0.5

7 ± 0.5

8 ± 0.5

9 ± 0.5

10 ± 0.5

11 ± 0.5

12 ± 0.5

13 ± 0.5

14 ± 0.5

15 ± 0.5

∗Glp1M REF

(Glp1M = 25 ± 2 dB)

∗Grf1 REF

(Grf1 = 5 ± 2 dB)

TEST

D8 D9

TESTMODE

0 0 OUTPUT OF GCA

0 1 OUTPUT OF B.M

1 0 INPUT OF BPF16 k, 46 k

1 1 NOT USED

Note) For input mode, pull up to

VCC with a 100 kΩ resistor.

Input voltage is 0.5 Vp-p or

less.

– 16 –

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